EP 1204903 A4 20050504 - HAND-HELD ELECTRONIC DEVICE

Title (en)

HAND-HELD ELECTRONIC DEVICE

Title (de)

TRAGBARE ELEKTRONISCHE VORRICHTUNG

Title (fr)

DISPOSITIF ELECTRONIQUE PORTATIF

Publication

EP 1204903 A4 20050504 (EN)

Application

EP 01934414 A 20010530

Priority

JP 0104539 W 20010530
JP 2000161282 A 20000530
JP 2000180381 A 20000615
JP 2000183674 A 20000619
JP 2001086141 A 20010323

Abstract (en)

[origin: WO0192970A1] A hand-held electronic device comprises an IC-card chip unit, a watch CPU, a power source unit, a display unit, and a switch connected between the power source unit and the IC-card chip unit. The watch CPU has a power supply controlling unit. The IC-card chip unit performs contactless data communication with an external transmitter-receiver in close range. The watch CPU operates on power from the power source unit, receives data from the IC-card chip unit to display the data on the display unit or to process the data before displaying them on the display unit. The power supply controlling unit closes a switch at least during the period of time that the watch CPU receives data from the IC-card chip unit, thereby causing power to be supplied from the power source unit to the IC-card chip unit.

IPC 1-7

G04C 3/00; G04G 1/00; G06F 3/14; G06K 19/00; G06K 19/077

IPC 8 full level

G04G 1/06 (2006.01); G04G 21/04 (2013.01); G06K 19/077 (2006.01); G07B 15/00 (2006.01); H04B 1/38 (2006.01)

CPC (source: EP US)

G04G 21/04 (2013.01 - EP US); G06K 19/07762 (2013.01 - EP US); G07B 15/00 (2013.01 - EP US); H04B 1/385 (2013.01 - EP US)

Citation (search report)

[X] US 5473145 A 19951205 - WALLERSTORFER KURT [AT], et al
[XY] EP 0875851 A2 19981104 - MATSUSHITA ELECTRIC IND CO LTD [JP]
[X] DE 19531625 A1 19960307 - MITSUBISHI ELECTRIC CORP [JP], et al
[A] GB 2180677 A 19870401 - SMITH KEVAN HENRY
[Y] US 5235563 A 19930810 - GANTER WOLFGANG [DE], et al
[A] WO 9729448 A1 19970814 - NJC INNOVATIONS [CH], et al
[A] DE 19613491 A1 19971016 - DIEHL IDENT GMBH [DE]
See references of WO 0192970A1

Designated contracting state (EPC)

CH DE FR GB LI

DOCDB simple family (publication)

WO 0192970 A1 20011206; CN 1232890 C 20051221; CN 1386215 A 20021218; EP 1204903 A1 20020515; EP 1204903 A4 20050504; HK 1044995 A1 20021108; US 2002107054 A1 20020808; US 7181179 B2 20070220

DOCDB simple family (application)

JP 0104539 W 20010530; CN 01802231 A 20010530; EP 01934414 A 20010530; HK 02106427 A 20020830; US 4844102 A 20020129